I agree with your sentiments, BUT…
Sadly (in this case), the business has changed so dramatically in the past few years. Label execs. once used to have decent component stereo systems in their offices, and there used to be a concern that the overall sound of mixes and mastering were good quality.
Now, the delivery of finished masters or mixes are auditioned mainly on car systems, or iPods. When your new material is tossed into the playlists of these people, they expect that the material is comparable to stuff they already have either on their label or other commercial releases. Death is when they have to turn up your mix after they've just been listening to another, loud, release.
I have had this discussion so many times with labels in the past couple of years I'm tired of it, but in reality I, as an independent producer, must accept that these people are my clients: they're paying my advances and have the contractual ability to demand remastering or remixing if in their view my product isn't 'present' or 'loud enough.'
This has lead to the standard being set at the lowest common denominator. It's regrettable, but I don't see a return to reason coming any time soon.
I'm now getting in to the habit of getting two mastering jobs done: one for release and one for promotion, sending to radio, and streaming. But I expect that soon I'll get busted, and I'll be criticized for this trick, and have my knuckles rapped.